Up for sale Easx-change pilot strap for IWC Big Pilot 43mm with the OEM deployant clasp. The strap is 21mm lug width by 18mm The red rubber is in like new condition the size on the strap is Small But I can tell you that my wrist is 7.25 inches and they fit with extra hole adjustment. So I would say 7.5 inch wrist Are fine with these . With the strap comes one OEM IWC deployant clasp, that is also part of the Easx-change family due to the tool-less hardware for swapping between straps . The clasp is in new condition also. (1) red rubber reference MXE0HP0T (1) 18mm clasp Reference MXEOHN9J 300 usd for the pair Includes shipping within CONUS And payment can be made by Venmo or Zelle Thanks